Traffic network sensor placement
First Claim
Patent Images
1. A computer implemented method comprising:
- identifying a particular segment of a travel path that has traffic flow characteristics;
accessing, based upon the traffic flow characteristics, traffic flow data for segments of a set of travel paths, the traffic flow data collected from sensors along the set of travel paths;
generating, based on the accessed traffic flow data, parameters for a traffic incident symptom propagation model;
determining, based upon the traffic incident symptom propagation model for the particular segment, a traffic incident location along the particular segment of the travel path wherein the determining the traffic incident location comprises determining, based on incident symptom propagation speed functions for an upstream symptom and a downstream symptom, a traffic incident location relative to an incident symptom propagation speed function for an upstream and downstream symptom;
determining, based on a first time-to-detection limit and using the traffic incident symptom propagation model, an upstream distance;
determining, based on the first time-to-detection limit and using the model, a downstream distance;
outputting, based upon the upstream and downstream distances, a sensor location on the particular segment of the travel path for a first sensor and a second sensor;
transmitting the first sensor location at a first end of the particular segment of the travel path and the second sensor location at a second end of the particular segment of the travel path; and
displaying, on a display, the first sensor location and the second sensor location.
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Abstract
Locations for traffic sensors can be determined by a computer system that identifies a particular segment of a travel path. Traffic flow data from other segments of travel path are accessed based on traffic flow characteristics of the particular path. Using the traffic flow data, parameters for a traffic incident symptom propagation model are generated, and a location of a traffic incident along the segment of the path is determined. Using time-to-detection limits and the incident model, upstream and downstream distances are determined, and the locations of two sensors are identified based on the distances.
16 Citations
15 Claims
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1. A computer implemented method comprising:
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identifying a particular segment of a travel path that has traffic flow characteristics; accessing, based upon the traffic flow characteristics, traffic flow data for segments of a set of travel paths, the traffic flow data collected from sensors along the set of travel paths; generating, based on the accessed traffic flow data, parameters for a traffic incident symptom propagation model; determining, based upon the traffic incident symptom propagation model for the particular segment, a traffic incident location along the particular segment of the travel path wherein the determining the traffic incident location comprises determining, based on incident symptom propagation speed functions for an upstream symptom and a downstream symptom, a traffic incident location relative to an incident symptom propagation speed function for an upstream and downstream symptom; determining, based on a first time-to-detection limit and using the traffic incident symptom propagation model, an upstream distance; determining, based on the first time-to-detection limit and using the model, a downstream distance; outputting, based upon the upstream and downstream distances, a sensor location on the particular segment of the travel path for a first sensor and a second sensor; transmitting the first sensor location at a first end of the particular segment of the travel path and the second sensor location at a second end of the particular segment of the travel path; and displaying, on a display, the first sensor location and the second sensor location. - View Dependent Claims (2, 3, 4, 5)
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6. A computer system comprising:
at least one processor circuit having; a path identifier module configured to; identify a particular segment of a travel path that has traffic flow characteristics; and access, based upon the traffic flow characteristics, traffic flow data for segments of a set of travel paths, the traffic flow data collected from sensors along the set of travel paths; a developer module configured to; generate, based on the accessed traffic flow data, parameters for a traffic incident symptom propagation model; and determine, based upon the traffic incident symptom propagation model for the particular segment, a traffic incident location along the particular segment of the travel path, wherein the determining the traffic incident location comprises determining, based on incident symptom propagation speed functions for an upstream symptom and a downstream symptom, a traffic incident location relative to an incident symptom propagation speed function for an upstream and downstream symptom; a distance determining module configured to; determine, based on a specified time-to-detection limit and using the model, an upstream distance; and determine, based on the specified time-to-detection limit and using the model, a downstream distance; and a report module configured to; output, based upon the upstream and downstream distances, a sensor location on the particular segment of the travel path for a first sensor and a second sensor; transmit the first sensor location at a first end of the particular segment of the travel path and the second sensor location at a second end of the particular segment of the travel path; and display, on a display, the first sensor location and the second sensor location. - View Dependent Claims (7, 8, 9, 10)
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11. A computer program product comprising a computer readable storage medium having program instructions embodied therewith, wherein the computer readable storage medium is not a transitory signal per se, the program instructions executable by a computer processing circuit to cause the circuit to perform the method comprising:
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identifying a particular segment of a travel path that has traffic flow characteristics; accessing, based upon the traffic flow characteristics, traffic flow data for segments of a set of travel paths, the traffic flow data collected from sensors along the set of travel paths; generating, based on the accessed traffic flow data, parameters for a traffic incident symptom propagation model; determining, based upon the traffic incident symptom propagation model for the particular segment, a traffic incident location along the particular segment of the travel path, wherein the determining the traffic incident location comprises determining, based on incident symptom propagation speed functions for an upstream symptom and a downstream symptom, a traffic incident location relative to an incident symptom propagation speed function for an upstream and downstream symptom; determining, based on a first time-to-detection limit and using the traffic incident symptom propagation model, an upstream distance; determining, based on the first time-to-detection limit and using the model, a downstream distance; outputting, based upon the upstream and downstream distances, a sensor location on the particular segment of the travel path for a first sensor and a second sensor; transmitting the first sensor location at a first end of the particular segment of the travel path and the second sensor location at a second end of the particular segment of the travel path; and displaying, on a display, the first sensor location and the second sensor location. - View Dependent Claims (12, 13, 14, 15)
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Specification